Hi Simon, On Tue, 8 Oct 2019 at 14:34, Simon Goldschmidt <simon.k.r.goldschm...@gmail.com> wrote: > > In a series I'm currently preparing, I've stumbled accross the fact that > IS_ERR_VALUE() doesn't reliably work on socfpga SPL as the onchip SRAM > begins at 0xffff0000 and the heap is at the end of the 32 bit range. >
Which function is returning that address? > Being like that, the current test for error (value >= -4095) which > equals 'value >= 0xfffff001' would require us to waste the last 4K of > that memory, which is not an option when it comes to using DM in SPL... > > Now on this platform, I'm sure I could find a range of 4096 bytes to use > as invalid pointer range, but the question is: how do I integrate that > into U-Boot in a clean manner? Would it be acceptable to change the > error headers imported from Linux or would I have to through the hassle > of changing Linux first? > > Or does anyone have a better idea to allow using the last 4K for heap? Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
